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Using the Poisson distribution table

What happens if software is not allowed and you are able to use only a table? In this video, I explain with an example how to use the Poisson distribution table for solving a problem that can be modeled by the Poisson distribution. It explains the three tradicional question in which you need to find the probability that the variable have exactly a value, at most a value, or more than a value. The problem I solve is the following: The mean number of errors made by a member of the word processing pool for a large company is thought to be 3 per every two pages with the number of errors distributed according to a Poisson distribution. If 10 pages are examined, what is the probability that 1) at most 10 errors are found? 2) exactly 10 errors are found? 3) more than 10 errors are found?